Why Your JFK Rose Blooms Yellow Instead of White

Rootstock Takeover in Grafted Roses

Your 'JFK' rose (a white variety) in eastern Washington is producing yellow flowers. This almost always means the rootstock (often 'Dr. Huey', a red/yellow rambler) has overtaken the grafted variety.

How to Confirm

• Check if the yellow blooms come from canes arising below the graft union (bulge near soil line).
• If the original white canes are dead or weak, rootstock has taken over.

Can You Fix It?

• No cultural practice changes flower color. The genetics are fixed.
• If any white canes remain, prune out all yellow-flowering canes at the base.
• If only rootstock remains, the plant is effectively a different rose.

Prevention for Future

• Buy own-root roses when possible.
• Plant graft union 2–3 inches below soil (in cold climates) to protect scion.
• Regularly remove suckers from below the graft.

Contact the grafter/nursery if the plant is new. Otherwise, enjoy the vigorous yellow blooms or replace with an own-root white variety.